I didn't file this bug initially, I just linked it to the CVE bug and added the submission link info. Jon, you filed this bug and indicated it bundled libiberty. If that isn't the case, then it could probably be closed NOTABUG (I didn't check to see if it was bundled, honestly, due to lack of time so I just blindly put #c1 in there to assist with any forthcoming updates).

Ah, it's exporting a symbol (if you looked at the list previous to it with the check for the actual source file, mutrace isn't noted), which is coming from here:
mutrace-0.2/backtrace-symbols.c:#include <libiberty.h>
So this is a red herring. I'm going to close this bug.